EP1447368A1 - Positioniererfassungssystem - Google Patents
Positioniererfassungssystem Download PDFInfo
- Publication number
- EP1447368A1 EP1447368A1 EP04000582A EP04000582A EP1447368A1 EP 1447368 A1 EP1447368 A1 EP 1447368A1 EP 04000582 A EP04000582 A EP 04000582A EP 04000582 A EP04000582 A EP 04000582A EP 1447368 A1 EP1447368 A1 EP 1447368A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- scale
- sensor
- position detection
- detection system
- coding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3492—Position or motion detectors or driving means for the detector
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
- G01D5/245—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
- G01D5/2454—Encoders incorporating incremental and absolute signals
- G01D5/2455—Encoders incorporating incremental and absolute signals with incremental and absolute tracks on the same encoder
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
- G01D5/249—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using pulse code
- G01D5/2492—Pulse stream
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
- G01D5/249—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using pulse code
- G01D5/2492—Pulse stream
- G01D5/2495—Pseudo-random code
Definitions
- the present invention relates to a position detection system, in particular for Elevators, with at least one sensor that is relative to a signal generator for the Sensor is movable.
- Such position detection systems can be used in particular for passenger and goods lifts can be used for a control.
- This task is carried out with a position detection system with the characteristics of Claim 1 solved.
- a scale is provided as a signal transmitter, on which one by the sensor detectable coding is applied, by means of which the position of the sensor relative to the scale can be determined, the absolute height of a car of an elevator are recorded so that a high degree of accuracy can be achieved depending on the coding can.
- the position detection system can be used for automated commissioning can be used and the determined data can be used both for control technology as well as for security requirements. In addition to use The position detection system can be used for the control and safety of an elevator also for self-monitoring and for diagnostic options occurring errors are used.
- the detection takes place of the positions by the sensor without contact, so that wear is minimized becomes.
- the scale with the coding preferably has a plurality of magnetic ones Fields that can be read by sensors. But it is possible to optically use inductive, capacitive or high-frequency systems for position detection. In magnetic systems, permanent or electromagnetic, magneto-resistive elements, Hall effects or reed contacts are used.
- the scale preferably has at least two different ones adjacent to one another arranged encodings.
- the one coding on a larger scale can be used purely for security purposes and coding with the small scale for Control can be used. It is also possible to have redundant position detection through multiple encodings. Then there is preferably also one Comparison unit provided, the position and / or detected by two sensors Comparing speed data in order to achieve increased safety.
- a car 1 is in a shaft guided and movable over a belt 2 or wire ropes.
- the belt 2 is over a driven deflection roller 3 is guided and is on the opposite side a counterweight 5 is arranged.
- a Machine room 6 In the upper area of the elevator shaft is a Machine room 6 with a controller 7 and required safety equipment 8 intended.
- a scale is arranged on the rear wall 30 in the shaft adjacent to the cabin 1.
- the scale has a coding, which by means of a with the cabin connected sensor is readable, so that a contactless reading of the position the cabin 1 is possible. By reading the coding is also the determination the speed of cabin 1 possible.
- the data captured by the sensor are forwarded to the control for the drive and to the safety equipment 8.
- the scale is in the shaft and the sensor is connected to the cabin. It is of course also possible to use one or arrange several sensors in the shaft and the scale on the cabin.
- the scale can be a vertically arranged bar, a rod or a tape, on the alternately arranged magnets with different polarity (north and south) are. Due to the different polarity, a label is applied, which can be read by appropriate magnetic sensors.
- the Position on the scale or tape is due to the change in the magnetic field coded.
- the sensors are arranged in sufficient numbers on the cabin enable contactless acquisition of magnetic data. It would be too conceivable to connect the scale or the sensors with the movable belt.
- the scale 2 shows examples of a coding of the scale.
- the scale is at least an absolutely coded scale 11 and an incremental scale 12 applied.
- the absolute position is processed so that it is used for safety functions can be used.
- the absolutely coded scale 11 can be any coding, but especially one receive linear, a gray or a "pseudo-random" coding.
- both scales do not have the same resolution. So it is conceivable that for security purposes a resolution of, for example 20 cm is sufficient. An elevator with a brief position error of ⁇ 20 cm would therefore not be unsafe. For convenience purposes, there are many a higher accuracy, for example 1 mm is required. That is the incremental Scale usable. Furthermore, this also has safety-relevant meaning: The speed can be in smaller intervals or with higher resolution be measured.
- FIG. 1 An example of a "pseudo-random" coding is shown in FIG.
- the north and south poles are linearly one after the other arranged that a bit pattern is created running in the direction of travel. If a section of a certain length from this bit pattern is considered, this bit pattern does not appear again along the entire length.
- the length is one unit of information of 24.4 mm, so that the scale can be read over a length of almost 30 cm got to.
- Characteristic of the "pseudo-random" code is that each piece> 12 bits from the linear Bit sequence occurs at most once on the length of the elevator shaft. If the viewing window is shifted by the length b (1 bit), the result is again a bit combination unique on the length of the elevator.
- the sensors can send signals by moving across the magnetic fields, such as a single Hall element 16 can be provided. Instead, it is also possible to combine several Hall elements in an arrangement 17 so that this is a 12th Read bit length of the scale.
- the length division on the magnetic tape of the scale is shown schematically at 18.
- a scale 19 with an applied magnetic coding can be a Hall element 16 or an arrangement 17 of Hall elements can be read, like this is shown schematically in the illustration with reference numeral 20. There the array 17 of Hall elements reads and generates the magnetic encoding thus a snapshot.
- the arrangement of sensors moves relative to the scale. To the results you need a snapshot of I consecutive bits to get the to be able to determine the exact position on the scale. This bit value can be found in a table clearly with a physical length, for example 23, 8 m above the Pit, can be linked.
- Several sensors can be arranged that, with appropriate evaluation, the reading result when the direction of flow changes improved.
- Another advantage of the position detection system according to the invention lies in the safe position determination, which also includes the commissioning of an elevator simplified. Instead of manual adjustment, as is customary in the prior art a setting can be made by a reference run. When driving with inspection control a corresponding operating mode can then be used Position can be approached, and by entering the person commissioning the Control reported and stored there safely as a reference value. This can repeat for all positions.
- the entry can be made directly on the control or the safety device, but preferably from the cabin.
- the safe interface is also available between position sensor and controller or safety device.
- the input device can be integrated in the inspection control or can be executed separately become.
- One possible implementation is the integration of inspection control and position input device in a common operator terminal with input options and displays, especially in a manual control terminal with an enabling switch, such as that from industrial robot and drive technology is known.
- the senor can be moved on the cab be installed and with its data, both safety-relevant and convenience functions support.
Abstract
Description
- Fig. 1
- eine schematische Darstellung eines Aufzuges, an dem ein erfindungsgemäßes Positionserfassungssystem montierbar ist;
- Fig. 2
- mehrere Ausführungsbeispiele für Kodierungen;
- Fig. 3
- ein Ausführungsbeispiel für eine Kombination von Kodierungen, und
- Fig. 4
- mehrere Ausführungsbeispiele für weitere Kodierungen.
Schachthöhe h | 100 m |
Gewünschte Auflösung a | 12 bit |
Resultierende Stufenzahl | Z = 212 = 4.096 |
Länge eines magnetischen Bits b | b = h : Z = 24,4 mm |
Physikalische Länge des Kode-Abschnittes I | I = b x a = 293 mm |
- Redundante Abtastung durch versetzte Sensor-Elemente
- Vergleich der absoluten Position mit inkrementalem Maßstab
- Plausibilitätsprüfung mit der vorherigen Position
- gleichzeitiges Lesen benachbarter Positionen (höhere Auflösung erforderlich).
- die gesamte Ausdehnung einer Aufzugsanlage kann überbrückt werden
- die Datenübertragung erfüllt die geforderten Sicherheitsstandards
- die Anzahl der Leitungen ist gering (beispielsweise Zeitmultiplex)
- die Echtzeitfähigkeit des Systems bleibt erhalten.
Claims (7)
- Positionserfassungssystem, insbesondere für Aufzüge, mit mindestens einem Sensor, der relativ zu einem Signalgeber für den Sensor bewegbar ist, dadurch gekennzeichnet, dass als Signalgeber ein Maßstab vorgesehen ist, an dem eine durch den Sensor erfassbare Kodierung (11-15, 19) aufgebracht ist, mittels der die Position des Sensors relativ zu dem Maßstab erfassbar ist.
- Positionserfassungssystem nach Anspruch 1, dadurch gekennzeichnet, dass die Erfassung der Position durch den Sensor berührungslos erfolgt.
- Positionserfassungssystem nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Maßstab mehrere magnetische Felder aufweist.
- Positionserfassungssystem nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Maßstab mindestens zwei unterschiedliche benachbart zueinander angeordnete Kodierungen (11-15, 19) aufweist.
- Positionserfassungssystem nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass mehrere Sensoren vorgesehen sind, mittels denen eine redundante Abtastung einer oder mehrerer Kodierungen (11-15, 19) möglich ist.
- Positionserfassungssystem nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass eine Vergleichseinheit vorgesehen ist, die von zwei Sensoren erfasste Positions- und/oder Geschwindigkeitswerte vergleicht.
- Positionserfassungssystem nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass eine Kodierung (11-15, 19) einen Maßstab von bis zu 2 mm aufweist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20302273U | 2003-02-12 | ||
DE20302273U DE20302273U1 (de) | 2003-02-12 | 2003-02-12 | Positionserfassungssystem |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1447368A1 true EP1447368A1 (de) | 2004-08-18 |
Family
ID=7979982
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04000582A Withdrawn EP1447368A1 (de) | 2003-02-12 | 2004-01-14 | Positioniererfassungssystem |
Country Status (3)
Country | Link |
---|---|
US (1) | US20040174161A1 (de) |
EP (1) | EP1447368A1 (de) |
DE (1) | DE20302273U1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009037435A1 (de) | 2009-08-13 | 2011-02-17 | Widmann, Manuela | Positionserfassungssystem zur Erfassung der Position eines relativ zu einem anderen Teil beweglichen Teils, insbesondere einer Aufzugkabine |
WO2011036348A1 (en) * | 2009-09-25 | 2011-03-31 | Kone Corporation | Measuring arrangement, electric drive, hoisting machine and elevator system |
CN103196470A (zh) * | 2013-04-15 | 2013-07-10 | 山东联友通信科技发展有限公司 | 基于一维磁编码的定位方法及定位系统 |
DE102012209537A1 (de) * | 2012-06-06 | 2013-12-12 | Deuta-Werke Gmbh | Verfahren, Inkrementalgeber und Auswertungssystem zur sicheren Wegstreckenmessung |
DE102022117613A1 (de) | 2022-07-14 | 2024-01-25 | Tk Elevator Innovation And Operations Gmbh | Aufzugsanlage mit Sensoreinrichtung zur Bestimmung von Position, Geschwindigkeit und/oder Beschleunigung eines Fahrkorbs |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW575518B (en) * | 2001-07-31 | 2004-02-11 | Inventio Ag | Lift installation with a measuring system for determining absolute cage position |
US7540357B2 (en) * | 2003-05-15 | 2009-06-02 | Otis Elevator Company | Position reference system for elevators |
DE102004037486B4 (de) * | 2004-07-27 | 2006-08-10 | ThyssenKrupp Aufzüge GmbH | Signalband und System zum Bestimmen eines Bewegungszustandes eines bewegten Körpers sowie diese verwendende Vorrichtung zur Geschwindigkeitsbegrenzung des bewegten Körpers, insbesondere eines Aufzugfahrkorbes |
US7938233B2 (en) * | 2005-03-22 | 2011-05-10 | Inventio Ag | System and method for detecting the state of an elevator cage |
DE102005050365A1 (de) * | 2005-10-20 | 2007-04-26 | Cherry Gmbh | Berührungsfreier Positionssensor |
DE102006004380A1 (de) * | 2006-01-31 | 2007-08-02 | BSH Bosch und Siemens Hausgeräte GmbH | Gargerät |
US20100141243A1 (en) * | 2007-04-02 | 2010-06-10 | Divicino Andrew T | Resistive position-sensing system including a stacked switch array, and components thereof |
DE102008055680A1 (de) * | 2008-10-28 | 2010-04-29 | Balluff Gmbh | Positons-/Wegmesssystem mit kodiertem Maßkörper |
ES2758525T3 (es) * | 2008-12-17 | 2020-05-05 | Fagor Automation S Coop | Encoder de posición absoluta |
DE102009016663A1 (de) * | 2009-03-31 | 2010-10-07 | Balluff Gmbh | Positions-/Wegmesssystem |
DE102009028093A1 (de) * | 2009-07-29 | 2011-02-10 | Robert Bosch Gmbh | Verfahren zur Herstellung eines magnetischen Sensorelements |
JP5785614B2 (ja) * | 2010-06-16 | 2015-09-30 | オーチス エレベータ カンパニーOtis Elevator Company | エレベータかご位置を特定する方法および装置 |
SI2447676T1 (sl) * | 2010-10-26 | 2017-01-31 | Bogen Electronic Gmbh | Postopek za izdelovanje magnetnega linearnega merila |
DE102011053309A1 (de) | 2011-09-06 | 2013-03-07 | Balluff Gmbh | Positions-/Wegmesssystem |
CN104024140B (zh) * | 2011-12-21 | 2016-08-24 | 通力股份公司 | 电梯 |
CN103512479B (zh) * | 2012-06-18 | 2017-02-08 | 深圳市蓝韵实业有限公司 | 升降床的升降行程检测结构 |
EP3021088B1 (de) * | 2014-11-12 | 2018-03-07 | Balluff GmbH | Inkrementales Längenmesssystem und Verfahren zu seinem Betrieb |
EP3784613B1 (de) * | 2018-04-24 | 2023-12-27 | Inventio Ag | Positionsbestimmungssystem und verfahren zur ermittlung einer kabinenposition einer aufzugkabine |
US10634520B1 (en) | 2018-05-09 | 2020-04-28 | Upc Llc | Expandable switch sensors with expandable magnetic actuators |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2840188A (en) | 1957-04-04 | 1958-06-24 | Westinghouse Electric Corp | Elevator systems |
US3963098A (en) * | 1974-05-07 | 1976-06-15 | Westinghouse Electric Corporation | Position measurement apparatus |
US5135081A (en) | 1991-05-01 | 1992-08-04 | United States Elevator Corp. | Elevator position sensing system using coded vertical tape |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030070883A1 (en) * | 2001-08-23 | 2003-04-17 | Foster Michael M. | Elevator selector |
-
2003
- 2003-02-12 DE DE20302273U patent/DE20302273U1/de not_active Expired - Lifetime
-
2004
- 2004-01-14 EP EP04000582A patent/EP1447368A1/de not_active Withdrawn
- 2004-02-09 US US10/774,894 patent/US20040174161A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2840188A (en) | 1957-04-04 | 1958-06-24 | Westinghouse Electric Corp | Elevator systems |
US3963098A (en) * | 1974-05-07 | 1976-06-15 | Westinghouse Electric Corporation | Position measurement apparatus |
US5135081A (en) | 1991-05-01 | 1992-08-04 | United States Elevator Corp. | Elevator position sensing system using coded vertical tape |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009037435A1 (de) | 2009-08-13 | 2011-02-17 | Widmann, Manuela | Positionserfassungssystem zur Erfassung der Position eines relativ zu einem anderen Teil beweglichen Teils, insbesondere einer Aufzugkabine |
WO2011036348A1 (en) * | 2009-09-25 | 2011-03-31 | Kone Corporation | Measuring arrangement, electric drive, hoisting machine and elevator system |
CN102648142A (zh) * | 2009-09-25 | 2012-08-22 | 通力股份公司 | 测量装置、电驱动器、升降机以及电梯系统 |
US8360211B2 (en) | 2009-09-25 | 2013-01-29 | Kone Corporation | Hoisting machine including a measuring arrangement and elevator system containing the same |
US8596420B2 (en) | 2009-09-25 | 2013-12-03 | Kone Corporation | Measuring arrangement including magnetic band and elevator system containing the same |
CN102648142B (zh) * | 2009-09-25 | 2014-12-03 | 通力股份公司 | 测量装置、电驱动器、升降机以及电梯系统 |
DE102012209537A1 (de) * | 2012-06-06 | 2013-12-12 | Deuta-Werke Gmbh | Verfahren, Inkrementalgeber und Auswertungssystem zur sicheren Wegstreckenmessung |
DE102012209537B4 (de) * | 2012-06-06 | 2016-06-30 | Deuta-Werke Gmbh | Verfahren, Inkrementalgeber und Auswertungssystem zur sicheren Wegstreckenmessung |
CN103196470A (zh) * | 2013-04-15 | 2013-07-10 | 山东联友通信科技发展有限公司 | 基于一维磁编码的定位方法及定位系统 |
CN103196470B (zh) * | 2013-04-15 | 2015-05-13 | 山东联友通信科技发展有限公司 | 基于一维磁编码的定位方法及定位系统 |
DE102022117613A1 (de) | 2022-07-14 | 2024-01-25 | Tk Elevator Innovation And Operations Gmbh | Aufzugsanlage mit Sensoreinrichtung zur Bestimmung von Position, Geschwindigkeit und/oder Beschleunigung eines Fahrkorbs |
Also Published As
Publication number | Publication date |
---|---|
DE20302273U1 (de) | 2003-04-30 |
US20040174161A1 (en) | 2004-09-09 |
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18D | Application deemed to be withdrawn |
Effective date: 20091128 |